Physical exercise stool



FIG. 1 is a perspective view of a physical exercise stool showing my new design;

FIG. 2 is a left side elevational view thereof, the side opposite being a mirror image;

FIG. 3 is a front elevational view thereof, the side opposite being a mirror image;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a physical exercise stool, as shown and described. 